scholarly journals Adapt, move or die - how will tropical coral reef fishes cope with ocean warming?

2016 ◽  
Vol 23 (2) ◽  
pp. 566-577 ◽  
Author(s):  
Adam Habary ◽  
Jacob L. Johansen ◽  
Tiffany J. Nay ◽  
John F. Steffensen ◽  
Jodie L. Rummer
Keyword(s):  
Coral Reef ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Ocean Warming ◽  
Tropical Coral ◽  
Tropical Coral Reef

scholarly journals Thermal acclimation of tropical coral reef fishes to global heat waves

eLife ◽  
2021 ◽  
Vol 10 ◽  
Author(s):  
Jacob L Johansen ◽  
Lauren E Nadler ◽  
Adam Habary ◽  
Alyssa J Bowden ◽  
Jodie Rummer
Keyword(s):  
Coral Reef ◽  
Citrate Synthase ◽  
Heat Waves ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Major Life ◽  
Mobile Species ◽  
Organ Systems ◽  
Tropical Coral ◽  
Tropical Coral Reef

As climate-driven heat waves become more frequent and intense, there is increasing urgency to understand how thermally sensitive species are responding. Acute heating events lasting days to months may elicit acclimation responses to improve performance and survival. However, the coordination of acclimation responses remains largely unknown for most stenothermal species. We documented the chronology of 18 metabolic and cardiorespiratory changes that occur in the gills, blood, spleen, and muscles when tropical coral reef fishes are thermally stressed (+3.0°C above ambient). Using representative coral reef fishes (Caesio cuning and Cheilodipterus quinquelineatus) separated by >100 million years of evolution and with stark differences in major life-history characteristics (i.e. lifespan, habitat use, mobility, etc.), we show that exposure duration illicited coordinated responses in 13 tissue and organ systems over 5 weeks. The onset and duration of biomarker responses differed between species, with C. cuning – an active, mobile species – initiating acclimation responses to unavoidable thermal stress within the first week of heat exposure; conversely, C. quinquelineatus – a sessile, territorial species – exhibited comparatively reduced acclimation responses that were delayed through time. Seven biomarkers, including red muscle citrate synthase and lactate dehydrogenase activities, blood glucose and hemoglobin concentrations, spleen somatic index, and gill lamellar perimeter and width, proved critical in evaluating acclimation progression and completion, as these provided consistent evaluation of thermal responses across species.

scholarly journals Opposing life stage‐specific effects of ocean warming at source and sink populations of range‐shifting coral‐reef fishes

2020 ◽  
Author(s):  
Cristián J. Monaco ◽  
Ivan Nagelkerken ◽  
David J. Booth ◽  
Will F. Figueira ◽  
Bronwyn M. Gillanders ◽  
...  
Keyword(s):  
Coral Reef ◽  
Life Stage ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Ocean Warming ◽  
Specific Effects ◽  
Source And Sink

Grazing pressure of herbivorous coral reef fishes on low coral-cover reefs

Coral Reefs ◽  
2006 ◽  
Vol 25 (3) ◽  
pp. 461-472 ◽  
Author(s):  
Michelle J. Paddack ◽  
Robert K. Cowen ◽  
Su Sponaugle
Keyword(s):  
Coral Reef ◽  
Coral Cover ◽  
Reef Fishes ◽  
Grazing Pressure ◽  
Coral Reef Fishes
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